Author(s): Xiaoling Zhu; Hua Zhang; Haiqing Ou
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Keywords: No Keywords
Abstract: Wave load is one of the main dynamic loads acts on marine engineering buildings, as well as the key factor in design and calculation of the marine engineering. Currently numerical simulation of wave load only take the influence of the flow field acts on structures into account, ignore the counteractive effect on flow field caused by deformation of structures, but in reality structure deformation should be taken into consideration, therefore research on the wave load of marine platform columnar support by the two-way fluid-structure interaction method is of great significance. Take single pile foundation support structure as the object, utilize ANSYS-Workbench and CFX fluid software to establish a simulative model of wave and single pile structure, in which the VOF method for liquid level free surface track and k-ε turbulence model are adopted, then realize two-way fluid-solid interaction simulation of the pile and the wave, obtain wave load that acts on the column, velocity profile when wave flows around the column. Compared with which is the one-way interaction, since two-way fluid-solid interaction considers the structure deformation, velocity and pressure change when wave flows around the pile. The results show that: the method of two-way fluid-solid interaction, which is applied for numerical simulation of ocean platform and the wave field, is reasonable and the conclusion of this paper provides a certain basis for the stability of offshore platform design.
Year: 2013